الفهرس 
Introduction
Gross anatomy of the colonOnly 14 pages are availabe for public view
 |  | from | 179 |  |  |
| | | from | 179 | | |
Abstract
Computed tomographic colonography has matured into an effective screening technique, wide spread implementation of CTC may represent a more attractive screening option for older individuals because of its less invasive nature.
The goal of colorectal screening is to reduce the morbidity and mortality of colon cancer by early detection and resection of adenomas and cancers.
Screening can be performed with tests that detect adenomatous polyps and cancer (flexible sigmoidoscopy every 5 years, or conventional colonoscopy every 10 years, or double-contrast barium enema every 5 years, or CTC every 5 years) or tests that primarily detect cancer (annual guaiac-based fecal occult blood test with high test sensitivity for cancer.
This study included 30 patients, all of them were referred for CC. All of their colons insufflated by about 2-3 liters of room air manually. About 19 patients received oral contrast medium. Scanning done in both supine and prone positions.
The study found that fecal tagging technique, shorten interpretation time, and increases sensitivity of the test.
The most common colonic pathology encountered in this study was polyps, and cancer for which the high MDCT sensitivity was proved, making it one of the most powerful non invasive screening tool.
Diverticulosis is the third common pathology detected, for which the sensitivity is high making it one of the most powerful non invasive screening tool.
CT is not a powerful screening tool only for intraluminal colonic examination but also what for happens beyond the colonic walls.